Cost Per Mille
Also called CPM and Cost Per Thousand
Cost per mille: the cost to show your ad one thousand times, the standard price unit for impression-based advertising.
CPM = (ad spend / impressions) x 1000
Why it matters
CPM is how brand and awareness campaigns are priced. Rising CPMs across a platform signal more competition for the same eyeballs, squeezing everyone's acquisition math.
For example
A brand campaign pays 300 rupees CPM, so reaching 1,00,000 people costs 30,000 rupees.
Go deeper
Related terms
Also in Starting Up
See how founders actually handle this on Money, pricing and metrics, part of the Starting Up hub.
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